- <tp:external-type name="Socket_Address_Type" type="u"
- from="Telepathy specification"/>
- <tp:external-type name="Socket_Access_Control" type="u"
- from="Telepathy specification"/>
- <tp:external-type name="Supported_Socket_Map" type="a{uau}"
- from="Telepathy specification"/>
- <tp:external-type name="Unix_Timestamp64" type="t"
- from="Telepathy specification"/>
- <tp:external-type name="Tube_ID" type="u"